📚 CCEA Year 11 Chemistry: Vocabulary & Terminology Quick Memory Guide | CCEA Year 11 化学：词汇术语速记指南
Mastering the terminology is half the battle in GCSE Chemistry. This guide breaks down the essential CCEA Year 11 vocabulary into logical groups with memory tricks, paired definitions in English and Chinese, and clear examples. Whether you are revising atomic structure, bonding, or organic chemistry, these bite-sized term banks will help you recall key language under exam pressure.
掌握术语是 GCSE 化学成功的一半。本指南将 CCEA Year 11 的核心词汇按逻辑分组，配以记忆技巧、中英对照释义和清晰示例。无论你复习的是原子结构、化学键还是有机化学，这些精炼的术语库都能帮助你在考试压力下快速回忆起关键措辞。
1. Atomic Structure Essentials | 原子结构核心术语
Atoms consist of a central nucleus containing protons and neutrons, surrounded by electrons arranged in shells. The atomic number (Z) is the number of protons, defining the element, while the mass number (A) is the sum of protons and neutrons. Isotopes are atoms of the same element with different numbers of neutrons, hence the same atomic number but different mass numbers.
原子由一个包含质子和中子的原子核以及分层排布的电子组成。原子序数 (Z) 是质子数，决定了元素的种类；质量数 (A) 则是质子数与中子数之和。同位素是指质子数相同而中子数不同的同种元素的原子，因此原子序数相同但质量数不同。
- Nucleus: the dense positive centre of an atom / 原子核：原子中心带正电的致密部分
- Electron shell / energy level: a region around the nucleus where electrons are likely to be found / 电子层/能级：电子在核外可能出现的一个区域
- Isotope: atoms with same proton count but different neutron count / 同位素：质子数相同、中子数不同的原子
- Relative atomic mass (Aᵣ): weighted average mass of atoms compared to 1/12 of carbon-12 / 相对原子质量：与碳-12 原子质量的 1/12 相比所得的平均质量
| Term | Memory Tip |
|---|---|
| Proton | Pro = positive, heavy as a 'pro' wrestler |
| Electron | Elec = electric, tiny negative charge |
| Neutron | Neutr- = neutral, no charge |
2. Periodic Table and Periodicity | 元素周期表与周期律
The modern periodic table arranges elements by increasing atomic number, placing them in periods (horizontal rows) and groups (vertical columns). The group number indicates the number of electrons in the outer shell for main-group elements. Periodicity refers to the repeating pattern of properties across periods, such as the trend from metallic to non-metallic character.
现代周期表按原子序数递增的顺序排列元素，形成周期（横行）和族（纵列）。对于主族元素，族数等于最外层电子数。周期律是指元素性质随周期递变呈现的重复规律，比如从金属性到非金属性的渐变趋势。
- Alkali metals: Group 1, very reactive, one outer electron / 碱金属：第1族，极易反应，最外层有一个电子
- Halogens: Group 7, reactive non-metals, seven outer electrons / 卤素：第7族，活泼非金属，最外层有七个电子
- Noble gases: Group 0/8, unreactive, full outer shell / 稀有气体：第0/8族，不活泼，最外层全满
- Transition metals: central block, form coloured compounds, catalysts / 过渡金属：中央区元素，能形成有色化合物，常用作催化剂
Number of outer electrons = group number (for Groups 1–8) / 最外层电子数 = 族数（第1–8族）
3. Bonding and Structure Types | 化学键与结构类型
Chemical bonding falls into three main types: ionic, covalent, and metallic. Ionic bonding is the electrostatic attraction between oppositely charged ions, formed when metals transfer electrons to non-metals. Covalent bonding involves the sharing of electron pairs between non-metal atoms; in giant covalent structures, atoms are linked in a continuous network (e.g. diamond, SiO₂). Metallic bonding is the attraction between a lattice of positive metal ions and a sea of delocalised electrons.
化学键主要分为三种类型：离子键、共价键和金属键。离子键是带有相反电荷离子间的静电吸引力，通常由金属将电子转移给非金属形成。共价键涉及非金属原子间共享电子对；在巨型共价结构中，原子连接成连续网络（如金刚石、SiO₂）。金属键是金属正离子晶格与离域电子海之间的吸引力。
- Cation: positive ion, formed by losing electrons / 阳离子：失去电子形成的正离子
- Anion: negative ion, formed by gaining electrons / 阴离子：得到电子形成的负离子
- Giant ionic lattice: regular repeating structure of ions, high melting point / 巨型离子晶格：离子有规则重复的结构，熔点高
- Simple molecular: small discrete molecules with weak intermolecular forces / 简单分子：由小分子组成，分子间作用力弱
- Delocalised electron: an electron free to move through the structure / 离域电子：能在结构中自由移动的电子
4. Quantitative Chemistry Language | 定量化学术语
The mole is the unit for amount of substance; one mole contains exactly 6.02 × 10²³ particles (Avogadro constant). Relative formula mass (Mᵣ) sums the relative atomic masses in a formula. Empirical formula gives the simplest whole-number ratio of atoms, while molecular formula shows the actual numbers. In solutions, concentration is measured in mol/dm³ (g/dm³ also common). The law of conservation of mass requires balanced equations.
摩尔是物质的量的单位；1 摩尔精确包含 6.02 × 10²³ 个微粒（阿伏加德罗常数）。相对式量 (Mᵣ) 是化学式中各原子相对原子质量的总和。经验式给出最简整数原子比，而分子式显示实际原子数。在溶液中，浓度以 mol/dm³ 计量（也常用 g/dm³）。质量守恒定律要求方程式必须配平。
n = m / Mᵣ (amount = mass / molar mass) / n = m / Mᵣ（物质的量 = 质量 / 摩尔质量）
c = n / V (concentration = amount / volume in dm³) / c = n / V（浓度 = 物质的量 / 体积 dm³）
| Term | Key Point |
|---|---|
| Mole | Amount of substance containing 6.02×10²³ particles |
| Avogadro constant | 6.02 × 10²³ mol⁻¹ |
| Empirical formula | Simplest whole-number ratio |
| Yield | Actual mass obtained compared to theoretical |
5. Reaction Terminology and Equations | 化学反应与方程式术语
Reactions fit into patterns: neutralisation (acid + base → salt + water), combustion (fuel + oxygen → oxides + energy), thermal decomposition (one substance breaks down on heating), and displacement (more reactive element pushes out a less reactive one). The symbol equations show state symbols: (s) solid, (l) liquid, (g) gas, (aq) aqueous. A balanced equation ensures equal numbers of each type of atom on both sides.
反应可归为几大类型：中和反应（酸 + 碱 → 盐 + 水）、燃烧反应（燃料 + 氧气 → 氧化物 + 能量）、热分解反应（一种物质受热分解）和置换反应（更活泼的元素把较不活泼的元素从其化合物中取代出来）。符号方程式要标出状态符号：(s) 固体、(l) 液体、(g) 气体、(aq) 水溶液。配平的方程式保证两侧每种原子的总数相等。
- Reactant: starting substance / 反应物：起始的物质
- Product: substance formed / 生成物：形成的物质
- Precipitate: insoluble solid formed in a solution reaction / 沉淀：溶液中反应生成的不溶固体
- Exothermic: reaction releasing heat to surroundings / 放热的：反应向环境释放热量
- Endothermic: reaction absorbing heat from surroundings / 吸热的：反应从环境吸收热量
6. Acids, Bases, and Salts | 酸、碱和盐
An acid is a substance that produces hydrogen ions (H⁺) in water; key acids: HCl, H₂SO₄, HNO₃. A base neutralises an acid (e.g. metal oxides, hydroxides). An alkali is a soluble base, producing hydroxide ions (OH⁻) in water; common alkalis: NaOH, KOH. The pH scale measures acidity/alkalinity: below 7 is acidic, 7 neutral, above 7 alkaline. A salt is the ionic compound formed when the H⁺ of an acid is replaced by a metal or ammonium ion.
酸是在水中能产生 H⁺ 离子的物质；常用酸：HCl、H₂SO₄、HNO₃。碱是能中和酸的物质（如金属氧化物、氢氧化物）。碱溶液是指可溶的碱，在水中产生 OH⁻ 离子；常见碱溶液：NaOH、KOH。pH 标度衡量酸碱度：小于 7 为酸性，等于 7 为中性，大于 7 为碱性。盐是酸中的 H⁺ 被金属或铵离子取代后形成的离子化合物。
acid + base → salt + water (neutralisation) / 酸 + 碱 → 盐 + 水（中和）
acid + metal → salt + hydrogen / 酸 + 金属 → 盐 + 氢气
| Acid Name | Formula | Salt Name Pattern |
|---|---|---|
| Hydrochloric acid | HCl | chloride |
| Sulfuric acid | H₂SO₄ | sulfate |
| Nitric acid | HNO₃ | nitrate |
7. Redox and Electrolysis | 氧化还原与电解
Oxidation originally meant gain of oxygen but now is defined as loss of electrons. Reduction is the gain of electrons. These always occur together as redox reactions. Electrolysis uses direct current to break down a molten or dissolved ionic compound: the anode (positive) attracts anions (oxidation), and the cathode (negative) attracts cations (reduction). An electrolyte is the ionic substance that conducts electricity and undergoes decomposition.
氧化最初指结合氧，但现在定义为失去电子。还原则是得到电子。两者总是同时发生，称为氧化还原反应。电解是利用直流电分解熔融或溶解的离子化合物：阳极（正极）吸引阴离子（氧化），阴极（负极）吸引阳离子（还原）。电解质是能导电并被分解的离子物质。
- OIL RIG: Oxidation Is Loss; Reduction Is Gain (of electrons) / 氧化是失去电子，还原是得到电子
- Anode: positive electrode, attracts anions / 阳极：正极，吸引阴离子
- Cathode: negative electrode, attracts cations / 阴极：负极，吸引阳离子
- Electrolyte: ionic compound in molten or dissolved state that conducts electricity / 电解质：在熔融或溶解状态下能导电的离子化合物
8. Introduction to Organic Chemistry | 有机化学入门
Organic chemistry studies carbon-based compounds. A hydrocarbon contains only hydrogen and carbon. Alkanes are saturated hydrocarbons with single covalent bonds only, general formula CₙH₂ₙ₊₂ (e.g. methane CH₄). Alkenes general formula CₙH₂ₙ (e.g. ethene C₂H₄). Functional groups determine the chemical family: alcohols have –OH, carboxylic acids have –COOH.
有机化学研究碳基化合物。烃是仅含碳和氢的化合物。烷烃是饱和烃，只含单键，通式为 CₙH₂ₙ₊₂（如甲烷 CH₄）。烯烃是不饱和烃，至少含一个 C=C 双键，通式为 CₙH₂ₙ（如乙烯 C₂H₄）。官能团决定化学类别：醇含有 –OH，羧酸含有 –COOH。
- Saturated: all carbon–carbon bonds are single / 饱和的：所有碳碳键均为单键
- Unsaturated: contains at least one carbon–carbon double bond / 不饱和的：至少含有一个碳碳双键
- Homologous series: family of compounds with the same functional group and general formula / 同系物：具有相同官能团和通式的一类化合物
- Isomer: compounds with same molecular formula but different structural arrangement / 同分异构体：分子式相同但结构排列不同的化合物
9. Rates and Energy Changes | 反应速率与能量变化
The rate of reaction measures how quickly reactants are converted into products; it can be followed by change in mass, volume of gas, colour, or formation of precipitate. Factors affecting rate include temperature, concentration/pressure, surface area, and catalyst. A catalyst provides an alternative reaction pathway with lower activation energy, the minimum energy needed for a reaction to occur. Energy profile diagrams show the relative energy of reactants, products, and the activation energy hump.
反应速率衡量反应物转化为生成物的快慢；可通过质量变化、气体体积变化、颜色变化或沉淀形成来跟踪。影响速率的因素包括温度、浓度/压强、表面积和催化剂。催化剂提供另一种具有较低活化能的反应路径，活化能是引发反应所需的最低能量。能量变化图显示反应物、生成物的相对能量以及活化能峰。
| Factor | Effect on Rate | Explanation |
|---|---|---|
| Increased temperature | Faster | More particles have energy ≥ activation energy, more frequent successful collisions |
| Higher concentration/pressure | Faster | More particles per unit volume → more frequent collisions |
| Larger surface area | Faster | More exposed particles available for collisions |
| Catalyst added | Faster | Lowers activation energy, providing alternative pathway |
Mean rate = Δ quantity / Δ time (e.g. cm³/s for gas) / 平均速率 = Δ 量 / Δ 时间（如气体 cm³/s）
10. Memory Techniques and Study Tips | 速记技巧与学习建议
Turn definitions into flashcards with the English term on one side and the bilingual definition plus an example on the other. Use acronyms like OIL RIG for redox, and mental images – picture a 'proton-heavy' wrestler for proton. Group terms by topic and create spider diagrams. Practice writing balanced equations while speaking aloud to link the auditory and visual memory pathways. Review the glossary as part of your daily 10‑minute warm‑up before tackling past paper questions.
将定义制成抽认卡，一面写英文术语，另一面写双语释义和示例。运用首字母缩略词，如氧化还原的 OIL RIG，以及心理图像——比如把质子想象成一位“重量级”摔跤手。按主题分组术语并绘制蛛网图。边写配平方程式边大声朗读，连接听觉与视觉记忆通路。每天花 10 分钟温习这份词汇表，作为处理历年试题前的热身。
| Technique | How to Apply |
|---|---|
| Chunking | Group terms into sets of 3–5 related concepts |
| Mnemonics | Create a sentence from first letters, e.g. 'Angry Cats Bite Dogs' for acid + base → salt + water? Keep it silly! |
| Dual coding | Combine a simple sketch with a word label |
| Spaced repetition | Review the same terms after 1 day, 3 days, 1 week |
11. Bilingual Quick Test: Can You Match? | 双语速测：你能配对吗？
Test your recall by covering the right-hand column and translating the English term into Chinese, or vice versa. Force retrieval from memory—this active recall is the most effective way to seal the vocabulary into your long-term memory before the exam.
盖住右侧，将英文术语译成中文，或反过来测试。强迫自己从记忆中提取——这种主动回忆是在考前将词汇固化入长期记忆的最有效方式。
| English Term | 中文术语 |
|---|---|
| Covalent bond | 共价键 |
| Activation energy | 活化能 |
| Electrolysis | 电解 |
| Homologous series | 同系物 |
| Displacement reaction | 置换反应 |
| Empirical formula | 经验式 |
12. Consolidation: The CCEA Command Word Bank | 巩固：CCEA 指令词库
Exam success also depends on interpreting command words. 'State' requires a short factual answer; 'Describe' asks for an account of what happens or is observed; 'Explain' demands reasoning or scientific principles behind the observation. 'Calculate' expects a numerical answer with working. Familiarity with these cues ensures you give exactly the detail the examiner is looking for.
考试成功还取决于对指令词的理解。“State” 要求简短的事实回答；“Describe” 要求描述所发生的或观察到的现象；“Explain” 则需要给出观察背后的事理或科学原理；“Calculate” 期望提供运算过程和数值答案。熟悉这些提示能确保你准确提供考官想要的细节。
Published by TutorHao | CCEA Chemistry Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图